Add more xorshift utilities

src/prng/xorshift/xorshift.c

@@ -79,6 +79,30 @@ u64 wpPrngXorshift256p(WpXor256State *state) {
 	return result;
 }
 
+u64 wpPrngXorshift256InRange(WpXor256State *state, u64 start, u64 end) {
+	return wpPrngXorshift256(state) % (end - start) + start;
+}
+
+u64 wpPrngXorshift256ssInRange(WpXor256State *state, u64 start, u64 end) {
+	return wpPrngXorshift256ss(state) % (end - start) + start;
+}
+
+u64 wpPrngXorshift256pInRange(WpXor256State *state, u64 start, u64 end) {
+	return wpPrngXorshift256p(state) % (end - start) + start;
+}
+
+u64 wpPrngXorshift256Choice(WpXor256State *state, u64 available_choices) {
+	return wpPrngXorshift256(state) % available_choices;
+}
+
+u64 wpPrngXorshift256ssChoice(WpXor256State *state, u64 available_choices) {
+	return wpPrngXorshift256ss(state) % available_choices;
+}
+
+u64 wpPrngXorshift256pChoice(WpXor256State *state, u64 available_choices) {
+	return wpPrngXorshift256p(state) % available_choices;
+}
+
 wp_intern u64 split_mix_64(SplitMix64State *state) {
 	state->seed += 0x9E3779B97f4A7C15;
 

src/prng/xorshift/xorshift.h

@@ -23,6 +23,12 @@ WpXor256State wpPrngXorshiftInitWithSeed(u64 seed);
 u64 wpPrngXorshift256(WpXor256State *state);
 u64 wpPrngXorshift256ss(WpXor256State *state);
 u64 wpPrngXorshift256p(WpXor256State *state);
+u64 wpPrngXorshift256InRange(WpXor256State *state, u64 start, u64 end);
+u64 wpPrngXorshift256ssInRange(WpXor256State *state, u64 start, u64 end);
+u64 wpPrngXorshift256pInRange(WpXor256State *state, u64 start, u64 end);
+u64 wpPrngXorshift256Choice(WpXor256State *state, u64 available_choices);
+u64 wpPrngXorshift256ssChoice(WpXor256State *state, u64 available_choices);
+u64 wpPrngXorshift256pChoice(WpXor256State *state, u64 available_choices);
 
 #ifdef WP_PLATFORM_CPP
 END_C_LINKAGE